CHAPTER V – SECTION I UNIT TROUBLESHOOTING
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5.1 GENERAL
Troubleshooting will identify equipment malfunctions, probable causes and
corrective actions. Table 5-1 lists common malfunctions that may occur.
Perform the tests in the order they are listed.
Table 5-1 Unit Troubleshooting
Malfunction Test / Inspection Corrective Action Ref. Para.
1.Beams fail to a. Inspect battery compartment -Clean battery 5.2.c
come on or for corrosion. compartment.
stay on. b. Inspect battery cap contact -Clean battery cap 5.2.f
for corrosion. contact.
c. Inspect battery cap and -Clean battery cap and 5.2.f
housing threads for housing threads.
contamination.
d. Possible internal failure. -Replace battery cap 5.2.f
-Return for repair. 5.6.a
2. Beams have a. Verify Exit Port Lens is not -Remove Exit Port Cover.
become weak obscured by dirt. -Clean Exit Port Lenses.
(not as bright).
b. Verify battery installation. -Tighten battery cap. 3.2.a
-Install new battery.
c. Verify Exit Port Lens is not -Replace battery cap. 5.2.f
scratched or pitted. -Return for repair. 5.6.a
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